1051935649 has 4 divisors (see below), whose sum is σ = 1052518320. Its totient is φ = 1051352980.

The previous prime is 1051935631. The next prime is 1051935671. The reversal of 1051935649 is 9465391501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9465391501 = 269 ⋅35187329.

It is a cyclic number.

It is not a de Polignac number, because 1051935649 - 2¹¹ = 1051933601 is a prime.

It is a super-2 number, since 2×1051935649² = 2213137219274102402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051935749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288619 + ... + 292240.

It is an arithmetic number, because the mean of its divisors is an integer number (263129580).

Almost surely, 2^1051935649 is an apocalyptic number.

It is an amenable number.

1051935649 is a deficient number, since it is larger than the sum of its proper divisors (582671).

1051935649 is an equidigital number, since it uses as much as digits as its factorization.

1051935649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582670.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 1051935649 is about 32433.5574521205. The cubic root of 1051935649 is about 1017.0205405880.

The spelling of 1051935649 in words is "one billion, fifty-one million, nine hundred thirty-five thousand, six hundred forty-nine".